Global Patent Index - EP 3553694 A1

EP 3553694 A1 20191016 - DISTANCE ESTIMATION OF VEHICLE HEADLIGHTS

Title (en)

DISTANCE ESTIMATION OF VEHICLE HEADLIGHTS

Title (de)

ABSTANDSSCHÄTZUNG VON FAHRZEUGSCHEINWERFERN

Title (fr)

ESTIMATION DE DISTANCE DE PHARES DE VÉHICULE

Publication

EP 3553694 A1 20191016 (EN)

Application

EP 18166934 A 20180412

Priority

EP 18166934 A 20180412

Abstract (en)

The present invention relates to a method for determining the distance to a vehicle for use in an AHC-System, comprising:capturing a raw image by using a camera of an AHC-System at nighttime;determining by the AHC-System that the raw image includes a headlight of a vehicle;extracting by the AHC-System an image segment of the raw image including the headlight of a vehicle;refining the image segment by applying a classifier, such as to generate a refined image including the a headlight of a vehicle;building a feature vector based on the refined image; andestimating the distance to the vehicle based on the feature vector. The present invention also relates to an image processing system adapted to perform the above method.

IPC 8 full level

G06V 10/764 (2022.01)

CPC (source: CN EP US)

B60Q 1/143 (2013.01 - CN); G06F 18/211 (2023.01 - US); G06F 18/2148 (2023.01 - US); G06F 18/24 (2023.01 - US); G06T 7/11 (2017.01 - US); G06T 7/50 (2017.01 - CN US); G06T 7/73 (2017.01 - US); G06V 10/764 (2022.01 - EP US); G06V 10/82 (2022.01 - EP US); G06V 20/56 (2022.01 - CN); G06V 20/584 (2022.01 - EP US); B60Q 1/14 (2013.01 - US); B60Q 2300/42 (2013.01 - CN); G06T 2207/10016 (2013.01 - US); G06T 2207/20081 (2013.01 - US); G06T 2207/20084 (2013.01 - US); G06T 2207/30252 (2013.01 - CN US)

Citation (applicant)

  • M. REZAEI ET AL.: "Robust Vehicle Detection and Distance Estimation Under Challenging Lighting Conditions", IEEE TRANS. ON INTELLIGENT TRANSPORTATION SYSTEMS, 2015
  • M. DIAZ ET AL.: "Robust real-time traffic light detection and distance estimation using a single camera", EXPERT SYSTEMS WITH APPLICATIONS, 2015

Citation (search report)

  • [A] US 2008030374 A1 20080207 - KUMON HIROAKI [JP], et al
  • [I] ALCANTARILLA P F ET AL: "Automatic LightBeam Controller for driver assistance", MACHINE VISION AND APPLICATIONS, SPRINGER, BERLIN, DE, vol. 22, no. 5, 27 March 2011 (2011-03-27), pages 819 - 835, XP019938298, ISSN: 1432-1769, DOI: 10.1007/S00138-011-0327-Y

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3553694 A1 20191016; CN 110371016 A 20191025; CN 110371016 B 20221220; US 10922827 B2 20210216; US 2019318490 A1 20191017

DOCDB simple family (application)

EP 18166934 A 20180412; CN 201910283584 A 20190410; US 201916366084 A 20190327